Collaborative assembly device for valve lock plate

Abstract

The invention discloses a valve lock plate collaborative assembly device, which relates to the technical field of process equipment, and comprises a press-fitting sleeve, and an electromagnetic adsorption mechanism, an overturning driving mechanism and a locking mechanism which are arranged on the press-fitting sleeve, and two feeding ports are symmetrically formed in the press-fitting sleeve; the positions, corresponding to the two feeding openings, of the press-fitting sleeve are rotationally provided with overturning seats used for bearing valve lock pieces correspondingly. The overturning driving mechanism is used for driving the two overturning seats to overturn at the same time; the locking mechanism is used for locking the two overturned overturning seats; the electromagnetic attraction mechanism is located in the press-fitting sleeve and used for attracting the two overturned valve lock pieces or releasing the two attracted valve lock pieces. The press-fitting sleeve is used for downwards pressing a spring upper seat of the valve group; and the spring of the valve group is used for driving the spring upper seat to reset when the press-fitting sleeve is withdrawn, so that the two valve lock plates, the valve rod and the spring upper seat are assembled. The problem that the valve cotter is prone to falling off is solved, assembly is safe and reliable, and the assembly accuracy and the assembly efficiency of the valve cotter are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of process equipment, and particularly relates to a collaborative assembly device for valve retainers. Background Art

[0002] The valve group of an engine includes a valve, an upper spring seat, a spring, and two valve retainers. The two valve retainers are assembled together to form a complete conical ring, and there are one to three annular clamping protrusions in the inner hole of the conical ring. When assembling the valve retainers, a professional tool is required to press down the upper spring seat together with the spring, and then the two valve retainers are sleeved on the tail of the valve stem of the valve. The annular clamping protrusions are just stuck in the annular clamping groove of the valve stem. When the upper spring seat is released, due to the elastic force of the spring, the outer surface of the conical ring formed by the two valve retainers just tightly fits with the inner surface of the conical hole of the upper spring seat, thereby realizing the assembly of the valve retainers.

[0003] Currently, when assembling the valve retainers, a clip is usually used to hold the valve retainers. Since the volume of the valve retainers is very small, there is a situation of unstable clamping between the clip and the valve retainers, making it extremely easy for the valve retainers to fall off the clip. In addition, the on-site maintenance working conditions are complex, and the fallen valve retainers are very difficult to find. Therefore, it often hinders the smooth assembly of the valve retainers, seriously reducing the assembly efficiency. If the valve retainers fall into the engine inner compartment, it will cause precision and vulnerable parts such as pistons to be pierced by the valve retainers, resulting in the scrapping of the engine, thus causing serious economic losses. Summary of the Invention

[0004] Aiming at the above-mentioned defects existing in the prior art, the present invention provides a collaborative assembly device for valve retainers. This collaborative assembly device for valve retainers is not only simple and convenient to operate, but also solves the problem of easy falling of the valve retainers, making the assembly safe and reliable, and improving the assembly accuracy and assembly efficiency of the valve retainers.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A co-assembly device for valve retainers, used for assembling the valve group of an engine. The valve group includes a valve, an upper spring seat, a spring, and two valve retainers. The co-assembly device for valve retainers includes a press-fitting sleeve, and an electromagnetic adsorption mechanism, a flipping drive mechanism, and a locking mechanism provided on the press-fitting sleeve. Two feeding ports are symmetrically formed on the press-fitting sleeve, and flipping seats for supporting the valve retainers are respectively rotatably provided at positions of the press-fitting sleeve corresponding to the two feeding ports; the flipping drive mechanism is used to drive the two flipping seats to flip simultaneously to flip the two valve retainers into the press-fitting sleeve; the locking mechanism is used to lock the two flipped flipping seats; the electromagnetic adsorption mechanism is located inside the press-fitting sleeve and is used to suck the two flipped valve retainers or release the two sucked valve retainers; the press-fitting sleeve is used to press down the upper spring seat so that the two released valve retainers fall to both sides of the valve stem of the valve; the spring is used to drive the upper spring seat to reset when the press-fitting sleeve is withdrawn so that the two valve retainers, the valve stem, and the upper spring seat are assembled.

[0007] Wherein, the electromagnetic adsorption mechanism is axially slidably arranged in the press-fitting sleeve through a guiding and limiting structure.

[0008] Wherein, the guiding and limiting structure includes two guiding and limiting holes symmetrically arranged at the center of the press-fitting sleeve, and a guiding and limiting rod passing through the two guiding and limiting holes. The guiding and limiting rod is slidably arranged in the two guiding and limiting holes and both ends of the guiding and limiting rod respectively extend out of the press-fitting sleeve. The electromagnetic adsorption mechanism is arranged on the guiding and limiting rod.

[0009] Wherein, the guiding and limiting hole includes a sliding guiding section and a rotating limiting section that are communicated with each other. The sliding guiding section extends along the axial direction of the press-fitting sleeve, and the rotating limiting section extends along the circumferential direction of the press-fitting sleeve and the rotating limiting section is located above the sliding guiding section. When the guiding and limiting rod is located in the rotating limiting sections of the two guiding and limiting holes, the magnetic adsorption part of the electromagnetic adsorption mechanism is located between the two flipping seats.

[0010] Wherein, the electromagnetic adsorption mechanism includes a connecting rod, an electromagnet, and a control switch. The connecting rod is vertically arranged on the guiding and limiting rod. The electromagnet is the magnetic adsorption part and the electromagnet is fixedly arranged on the connecting rod. The control switch is arranged at one end of the guiding and limiting rod and the control switch is electrically connected to the electromagnet.

[0011] Wherein, a centering guiding sleeve is coaxially sleeved inside the press-fitting sleeve. An avoidance hole for avoiding the guiding and limiting rod is arranged on the centering guiding sleeve. The guiding and limiting rod passes through the centering guiding sleeve. The connecting rod and the electromagnet are slidably arranged inside the centering guiding sleeve.

[0012] Among them, the flipping seat includes a flipping plate and a supporting platform protruding from the inner wall of the flipping plate. The flipping plate is rotatably arranged on the pressing sleeve through a rotating shaft, and a rotating limiting structure is arranged between the flipping plate and the pressing sleeve.

[0013] Among them, the flipping plate is arc-shaped. When the axis of the flipping plate coincides with the axis of the pressing sleeve, the flipping seat closes the feeding port.

[0014] Among them, the flipping driving mechanism includes a pushing cylinder slidably sleeved outside the pressing sleeve. The pushing cylinder is used to push the flipping seat to flip so that the axis of the flipping plate coincides with the axis of the pressing sleeve. A sliding limiting structure for limiting the pushing cylinder is arranged on the pressing sleeve.

[0015] Among them, the locking mechanism includes a locking cylinder sleeved outside the pressing sleeve. The locking cylinder is threadedly connected to the pressing sleeve.

[0016] By adopting the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] The air valve lock piece collaborative assembly device provided by the present invention supports two air valve lock pieces through two flipping seats, drives the two flipping seats to flip simultaneously through the flipping driving mechanism to flip the two air valve lock pieces into the pressing sleeve, locks the two flipped flipping seats through the locking mechanism, sucks the two flipped air valve lock pieces through the electromagnetic adsorption mechanism in the pressing sleeve, presses the spring upper seat downward by the pressing sleeve and releases the two sucked air valve lock pieces by the electromagnetic adsorption mechanism so that the two released air valve lock pieces fall to the side of the valve stem of the valve, and drives the spring upper seat to reset by the spring when the pressing sleeve withdraws, thereby realizing the assembly of the two air valve lock pieces with the valve stem and the spring upper seat. Compared with the prior art, the air valve lock piece collaborative assembly device of the present invention is not only simple and convenient to operate, but also during the assembly process, the air valve lock pieces are tightly adsorbed on the electromagnetic adsorption mechanism and will not fall off, solving the problem that the air valve lock pieces are easy to fall off, making the assembly safe and reliable, and greatly improving the assembly accuracy and assembly efficiency of the air valve lock pieces. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the air valve lock piece collaborative assembly device of the present invention;

[0019] Figure 2 is Figure 1 a sectional view of

[0020] Figure 3 is Figure 1 another sectional view of

[0021] Figure 4 is Figure 1 a schematic structural diagram of the middle sleeve body in

[0022] Figure 5 is Figure 1 a schematic structural view of the flipping seat in the middle;

[0023] Figure 6 is Figure 1 a reference diagram for the use of;

[0024] In the figure: 1, press-fitting sleeve; 11, sleeve body; 110, loading port; 112, guiding and limiting hole; 1121, sliding guiding section; 1122, rotating limiting section; 114, guiding and limiting rod; 116, limiting groove; 118, mounting groove; 12, end cover; 13, centering guiding sleeve; 2, electromagnetic adsorption mechanism; 21, connecting rod; 22, electromagnet; 23, control switch; 3, flipping seat; 31, flipping plate; 310, limiting convex; 32, supporting table; 33, rotating shaft; 4, flipping driving mechanism; 41, pushing cylinder; 5, locking mechanism; 51, locking cylinder; 6, elastic retaining ring; 7, valve; 8, valve seat; 9, valve guide; 10, oil seal; 14, valve lock piece; 15, upper spring seat; 16, lower spring seat; 17, spring; 18, cylinder block. Specific embodiments

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As Figures 1 to 6 shown, this embodiment provides a collaborative assembly device for valve lock pieces for the assembly of the valve group of an engine.

[0027] The valve group of the engine includes a valve 7, a valve seat 8, a valve guide 9, an oil seal 10, two valve lock pieces 14, an upper spring seat 15, a lower spring seat 16 and a spring 17. The valve seat 8, the valve guide 9 and the upper spring seat 15 are all assembled on the cylinder block 18, and the upper spring seat 15 is sleeved outside the valve guide 9. The valve stem of the valve 7 sequentially passes through the valve seat 8 and the valve guide 9 and is then locked with the upper spring seat 15 through two valve lock pieces 14. The spring 17 is sleeved outside the valve stem and the two ends of the spring 17 are respectively abutted against the upper spring seat 15 and the lower spring seat 16. The oil seal 10 is sleeved on the valve stem and seals one end of the valve guide 9 extending out of the cylinder block 18, specifically as Figure 6 shown. The valve group in this embodiment is a prior art and is widely used in the field of engines. Its more specific structure will not be elaborated here. For a more specific structure, reference can be made to the physical object or other existing materials.

[0028] The valve retainer collaborative assembly device in this embodiment includes a press-fitting sleeve 1, and an electromagnetic adsorption mechanism 2, a flipping drive mechanism 4, and a locking mechanism 5 arranged on the press-fitting sleeve 1. Two feeding ports 110 are symmetrically formed on the press-fitting sleeve 1. At positions corresponding to the two feeding ports 110 of the press-fitting sleeve 1, flipping seats 3 for supporting valve retainers 14 are respectively rotatably arranged; the flipping drive mechanism 4 is used to drive the two flipping seats 3 to flip simultaneously to flip the two valve retainers 14 into the press-fitting sleeve 1; the locking mechanism 5 is used to lock the two flipped flipping seats 3; the electromagnetic adsorption mechanism 2 is located inside the press-fitting sleeve 1 and is used to suck the two flipped valve retainers 14 or release the two sucked valve retainers 14; the press-fitting sleeve 1 is used to press down the upper spring seat 15 so that the two released valve retainers 14 can fall to both sides of the valve stem of the valve 7; the spring 17 is used to drive the upper spring seat 15 to reset when the press-fitting sleeve 1 is withdrawn so that the two valve retainers 14, the valve stem, and the upper spring seat 15 are assembled.

[0029] In the valve retainer collaborative assembly device in this embodiment, two valve retainers 14 are supported by two flipping seats 3. The two flipping seats 3 are driven by the flipping drive mechanism 4 to flip simultaneously to flip the two valve retainers 14 into the press-fitting sleeve 1. The two flipped flipping seats 3 are locked by the locking mechanism 5. The two flipped valve retainers 14 are sucked by the electromagnetic adsorption mechanism 2 inside the press-fitting sleeve 1. The press-fitting sleeve 1 presses down the upper spring seat 15 and the electromagnetic adsorption mechanism 2 releases the two sucked valve retainers 14 so that the two released valve retainers 14 can fall to the side of the valve stem of the valve 7. When the press-fitting sleeve 1 is withdrawn, the spring 17 drives the upper spring seat 15 to reset, and thus the assembly of the two valve retainers 14 with the valve stem and the upper spring seat 15 can be realized. This valve retainer collaborative assembly device is not only simple and convenient to operate, but also during the assembly process, the valve retainers 14 are tightly adsorbed on the electromagnetic adsorption mechanism 2 and will not fall off, solving the problem that the valve retainers 14 are prone to falling off, making the assembly of the valve retainers 14 safe and reliable, and greatly improving the assembly accuracy and assembly efficiency of the valve retainers 14.

[0030] The press-fitting sleeve 1 in this embodiment includes a sleeve body 11 with openings at both ends and an end cover 12 arranged at one end of the sleeve body 11. The feeding ports 110 and the flipping seats 3 are arranged on the sleeve body 11. In practical applications, the press-fitting sleeve 1 can also adopt other structures, which are specifically designed according to actual needs and will not be elaborated in this embodiment.

[0031] The electromagnetic adsorption mechanism 2 in this embodiment is axially slidably arranged in the press-fitting sleeve 1 through a guiding and limiting structure. With this setting, not only the positioning and sucking of the valve retainers 14 by the electromagnetic adsorption mechanism 2 are realized, but also the purpose of positioning and releasing the valve retainers 14 close to the valve group is achieved, ensuring that the two valve retainers 14 can be accurately released to both sides of the valve stem, and further improving the assembly accuracy and reliability of the valve retainers 14.

[0032] The guiding and limiting structure in this embodiment includes two guiding and limiting holes 112 symmetrically arranged at the center on the sleeve body 11 of the press-fitting sleeve 1, and a guiding and limiting rod 114 passing through the two guiding and limiting holes 112. The guiding and limiting rod 114 is slidably arranged in the two guiding and limiting holes 112, and both ends of the guiding and limiting rod 114 extend out of the sleeve body 11 of the press-fitting sleeve 1. The electromagnetic adsorption mechanism 2 is arranged on the guiding and limiting rod 114.

[0033] Specifically, the guiding and limiting hole 112 includes a sliding guiding section 1121 and a rotating limiting section 1122 that are connected and communicate with each other. The sliding guiding section 1121 extends along the axial direction of the sleeve body 11 of the press-fitting sleeve 1, and the rotating limiting section 1122 extends along the circumferential direction of the sleeve body 11 of the press-fitting sleeve 1 and the rotating limiting section 1122 is located above the sliding guiding section 1121. When the guiding and limiting rod 114 is located in the rotating limiting sections 1122 of the two guiding and limiting holes 112, the magnetic adsorption part of the electromagnetic adsorption mechanism 2 is located between the two flipping seats 3; when the guiding and limiting rod 114 is located at the lowermost part of the sliding guiding section 1121, the magnetic adsorption part of the electromagnetic adsorption mechanism 2 is used to release the valve spring retainer 14.

[0034] The electromagnetic adsorption mechanism 2 in this embodiment includes a connecting rod 21, an electromagnet 22 and a control switch 23. The connecting rod 21 is vertically arranged on the guiding and limiting rod 114. The electromagnet 22 is the magnetic adsorption part of the electromagnetic adsorption mechanism 2 and the electromagnet 22 is fixedly arranged on the connecting rod 21. The control switch 23 is arranged on one end of the guiding and limiting rod 114 and the control switch 23 is electrically connected to the power supply of the electromagnet 22. With such a setting, it is convenient for the operator to manipulate the electromagnetic adsorption mechanism 2 from the outside, improving the operation convenience of the electromagnetic adsorption mechanism 2.

[0035] Specifically, the control switch 23 is electrically connected to the power supply of the electromagnet 22 through a wire. Threaded holes are provided on both the connecting rod 21 and the guiding and limiting rod 114 (not shown in section in the figure), and the wire is threaded through the threaded holes.

[0036] In order to further improve the accuracy and reliability of the assembly of the valve spring retainer 14, a centering guiding sleeve 13 is coaxially sleeved in the sleeve body 11 of the press-fitting sleeve 1 in this embodiment. The centering guiding sleeve 13 is shorter than the sleeve body 11. An avoidance hole for avoiding the guiding and limiting rod 114 is provided on the centering guiding sleeve 13. The guiding and limiting rod 114 passes through the centering guiding sleeve 13, and the connecting rod 21 and the electromagnet 22 are slidably arranged in the centering guiding sleeve 13.

[0037] Specifically, threaded holes are provided on the end cover 12, and the centering guiding sleeve 13 is threadedly connected to the threaded holes.

[0038] In this embodiment, the flipping seat 3 includes a flipping plate 31 and a supporting platform 32 protruding from the inner wall of the flipping plate 31. The flipping plate 31 is rotatably arranged on the sleeve body 11 of the pressing sleeve 1 through a rotating shaft 33, and a rotating limiting structure is arranged between the flipping plate 31 and the sleeve body 11 of the pressing sleeve 1.

[0039] In this embodiment, the flipping plate 31 is arc-shaped. When the axis of the flipping plate 31 coincides with the axis of the sleeve body 11 of the pressing sleeve 1, the flipping seat 3 closes the feeding port 110, and the air door lock piece 14 is completely flipped into the sleeve body 11.

[0040] Specifically, the flipping plate 31 is made of the waste material cut off when the feeding port 110 is opened on the sleeve body 11. This setting saves materials and reduces costs.

[0041] In this embodiment, the rotating limiting structure includes a limiting groove 116 arranged on the sleeve body 11 and a limiting protrusion 310 arranged on the flipping plate 31. When the flipping seat 3 is assembled with the sleeve body 11, the limiting protrusion 310 is located in the limiting groove 116.

[0042] In this embodiment, the flipping angle of the flipping seat 3 is preferably 0° to 45°. When the axis of the flipping plate 31 coincides with the axis of the sleeve body 11, the flipping angle of the flipping seat 3 is 0°.

[0043] In this embodiment, the flipping driving mechanism 4 includes a pushing cylinder 41 slidably sleeved outside the pressing sleeve 1. The pushing cylinder 41 is used to push the flipping seat 3 to flip so that the axis of the flipping plate 31 coincides with the axis of the pressing sleeve 1. A sliding limiting structure for limiting the pushing cylinder 41 is arranged on the pressing sleeve 1.

[0044] Specifically, the pushing cylinder 41 is sleeved on the sleeve body 11. The sliding limiting structure includes a mounting groove 118 arranged on the sleeve body 11 and an elastic retaining ring 6 arranged in the mounting groove 118.

[0045] In this embodiment, the locking mechanism 5 includes a locking cylinder 51 sleeved outside the pressing sleeve 1. The locking cylinder 51 is threadedly connected to the pressing sleeve 1.

[0046] Specifically, the locking cylinder 51 is threadedly connected to the sleeve body 11, and the locking cylinder 51 and the pushing cylinder 41 are respectively located on the upper and lower sides of the flipping seat 3. One end of the locking cylinder 51 close to the flipping seat 3 has two locking ears, and the two locking ears are used to limit the flipping seat 3 to prevent the flipping seat 3 from flipping.

[0047] In the initial state, the guiding and limiting rod 114 is located in the rotating limiting section 1122 of the two guiding and limiting holes 112, and the electromagnet 22 of the electromagnetic adsorption mechanism 2 is located between the two flipping seats 3.

[0048] When loading the valve retainer 14, first press the control switch 23 to energize the electromagnet 22, then place the two valve retainers 14 on the corresponding flipping seats 3 respectively, and then use the pushing cylinder 41 to push the two flipping seats 3 upward so that the two flipping seats 3 flip inward towards the inside of the press-fitting sleeve 1 simultaneously. When the two flipping seats 3 close the loading port 110, the two valve retainers 14 are simultaneously adsorbed onto the electromagnet 22. Then lock the two flipping seats 3 through the locking cylinder 51, and slide the guiding and limiting rod 114 to the lowermost position of the sliding guiding section 1121 of the two guiding and limiting holes 112. At this time, the loading work of the valve retainer 14 is completed.

[0049] When assembling the valve retainer 14, use the open end of the press-fitting sleeve 1 to press down the upper spring seat 15. When pressing down until the valve stem touches the free end of the centering and guiding sleeve 13 (at this time, the annular groove on the valve stem is exposed from inside the upper spring seat 15), press the control switch 23 to de-energize the electromagnet 22 to release the two valve retainers 14, and then the two released valve retainers 14 fall; when the two valve retainers 14 fall to the side of the valve stem, remove the press-fitting sleeve 1 from the upper spring seat 15. At this time, the spring 17 will drive the upper spring seat 15 to reset when the press-fitting sleeve 1 is removed. During the reset process of the upper spring seat 15, the tapered hole of the upper spring seat 15 will squeeze the two valve retainers 14 to install the two valve retainers 14 onto the upper spring seat 15 and the valve stem, thereby realizing the assembly of the two valve retainers 14 with the valve stem and the upper spring seat 15.

[0050] The above is an embodiment of the collaborative assembly device for the valve retainer of the present invention, and there are more embodiments not elaborated here. In summary, the collaborative assembly device for the valve retainer of the present invention is not only simple and convenient to operate, but also during the assembly process, the valve retainer 14 is tightly adsorbed on the electromagnetic adsorption mechanism 2 and will not fall off, solving the problem that the valve retainer is likely to fall off, making the assembly safe and reliable, and greatly improving the assembly accuracy and assembly efficiency of the valve retainer 14.

[0051] The present invention is not limited to the above specific implementation manners. Various transformations made by those of ordinary skill in the art starting from the above concepts without creative labor all fall within the protection scope of the present invention.

Claims

1. A valve lock piece cooperative assembly device, used for assembling a valve group of an engine, wherein the valve group comprises a valve, a spring upper seat, a spring and two valve lock pieces, characterized in that: The valve lock piece cooperative assembly device comprises a press-fitting sleeve, and an electromagnetic adsorption mechanism, a flip driving mechanism and a locking mechanism arranged on the press-fitting sleeve. The press-fitting sleeve has two symmetrical feeding ports, and the press-fitting sleeve is rotatably provided with flip seats for supporting the valve lock plates at the positions corresponding to the two feeding ports; the flip driving mechanism is used to drive the two flip seats to flip simultaneously so as to flip the two valve lock plates into the press-fitting sleeve; the locking mechanism is used to lock the two flip seats that have been flipped; the electromagnetic adsorption mechanism is located in the press-fitting sleeve, and is used to absorb the two flipped valve lock plates or release the two absorbed valve lock plates; the press-fitting sleeve is used to press down the spring upper seat so that the two released valve lock plates fall to the two sides of the valve and its valve stem; the spring is used to drive the spring upper seat to reset when the press-fitting sleeve is withdrawn so as to assemble the two valve lock plates, the valve stem and the spring upper seat.

2. The valve lock piece cooperative assembly device according to claim 1, characterized in that: The electromagnetic adsorption mechanism is axially slidably arranged in the press-fitting sleeve through a guide and limiting structure.

3. The valve lock piece cooperative assembly device according to claim 2, characterized in that: The guide limit structure includes two guide limit holes which are centrally symmetrically arranged on the press-fitting sleeve, and a guide limit rod which passes through the two guide limit holes. The guide limit rod is slidably arranged in the two guide limit holes and the two ends of the guide limit rod extend out of the press-fitting sleeve respectively. The electromagnetic adsorption mechanism is arranged on the guide limit rod.

4. The valve lock piece cooperative assembly device according to claim 3, characterized in that: The guide limit hole includes a connected sliding guide section and a rotation limit section, the sliding guide section extends along the axial direction of the press-fitting sleeve, the rotation limit section extends along the circumferential direction of the press-fitting sleeve and the rotation limit section is located above the sliding guide section, when the guide limit rod is located in the rotation limit section of the two guide limit holes, the magnetic attraction part of the electromagnetic adsorption mechanism is located between the two flip seats.

5. The valve lock piece cooperative assembly device according to claim 4, characterized in that: The electromagnetic adsorption mechanism includes a connecting rod, an electromagnet and a control switch, the connecting rod is vertically arranged on the guide limit rod, the electromagnet is the magnetic attraction part and the electromagnet is fixedly arranged on the connecting rod, the control switch is arranged on one end of the guide limit rod and the control switch is electrically connected to the electromagnet.

6. The valve lock piece cooperative assembly device according to claim 5, characterized in that: A centering guide sleeve is provided in the coaxial sleeve of the press-fit sleeve. A avoidance hole for avoiding the guide limit rod is provided on the centering guide sleeve. The guide limit rod passes through the centering guide sleeve. The connecting rod and the electromagnet are slidably arranged in the centering guide sleeve.

7. The valve lock piece cooperative assembly device according to claim 1, characterized in that: The flip seat comprises a flip plate and a support platform protruding from the inner wall of the flip plate. The flip plate is rotatably arranged on the press-fitting sleeve via a rotating shaft, and a rotation limiting structure is arranged between the flip plate and the press-fitting sleeve.

8. The valve lock piece cooperative assembly device according to claim 7, characterized in that: The flip plate is in an arc shape, and when the axis of the flip plate coincides with the axis of the press-fitting sleeve, the flip seat closes the loading port.

9. The valve lock piece cooperative assembly device according to claim 8, characterized in that: The flip driving mechanism includes a push cylinder slidably mounted outside the press-fitting sleeve, the push cylinder is used to push the flip seat to flip so that the axis of the flip plate coincides with the axis of the press-fitting sleeve, and the press-fitting sleeve is provided with a sliding limiting structure for limiting the push cylinder.

10. The valve lock piece cooperative assembly device according to claim 8, characterized in that: The locking mechanism comprises a locking cylinder sleeved outside the press-fitting sleeve, and the locking cylinder is threadedly connected to the press-fitting sleeve.

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